Hi, While surfing the net i come across how dextromethorphan(DXM) has helped people with fibro pain which i have read about before but then came across how some people are using DXM to reduce benzo tolerance. Reducing benzo tolerance info is mainly anecdotel, people came across it by accident when they took the dxm in a cough medicine and then took there normal benzo for sleep and it improved the effectiveness of the benzo's. Many seem to think that it reduce the tolerence and can use even lower doses with good effect. Also seems to work for narcotic pain relief as well, the benefits have been that people get use lower doses and they are just as effective as higher doses. DXM is suppose to have NMDA antagonist properties and this is supposedly the mechanism that helps fibro pain as well as reducing drug tolerance. Dosages seem to vary and some info is from people who are only interested in getting high, but if they have useful information that helps us treat our condition better then im cool with that. My understanding is that it is a safe drug when used in normal doses and is sold over the counter as a cough medicine. I think this is an interesting med to look into especially the subject of benzo tolerance which has been in alot of threads of late. Reducing the dose of meds to the least amount thats effective i think is a good thing. Heres some links http://www.fibromyalgia-symptoms.org/fibromyalgia_dextromethorphan.html http://www.webmd.com/fibromyalgia/news/20050523/cough-drug-may-help-fibromyalgia-pain http://www.drugs-forum.com/forum/showthread.php?t=159644 I would like to know if anyone has used this dmx for pain or other purposes. cheers!!!